Heat-equalizer for ovens



(No Model.) 2 Sheets-Sheet 1.

G. R. MOON." HEAT EQUAL'IZER FOR OVENS.

No. 415,649. Patented Nov. 19, 1889.

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G. R. MOON.

HEAT EQUALIZBR FOR OVENS.

No. 415,649. Patented Nov. 19. 1889.

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V UNITED STATES PATENT OFFICE.

GEORGE R. MOON, OF IVILMINGTON, OHIO.

HEAT-EQUALIZER FOR OVENS.

SPECIFICATION forming part of Letters Patent No. 415,649,. dated November 19, 1889.

' Application filed May 9, 1889. Serial No. 310,107. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE R. MOON, a citizen of the United States, residing at Vilmington, in the county of Clinton and State of Ohio, have invented certain new and useful Improvements in Heat-Equalizers for the Ovens of Gas, Gasoline, and Oil Stoves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The special object of the invention is to economize and equalize heat in gas, gasoline, and oil stove ovens, the trouble being with ,these ovens that they become too hot on the bottom and insufficiently so on the top.

Figure 1 is a perspective view of my improved heat equalizer. Fig. 2 represents a vertical section of the equalizer, taken 011 line 00 0c of Fig. 3. Fig. 3 is a vertical transverse section taken on line .2 ,2 of Fig. 2. Fig. 4c is a vertical section of an oven with the equalizer in position therein, the latter being shown in vertical longitudinal section.

A designates the heat-equalizer, which is commonly constructed of sheet-iron, that being a good radiator of heat.

B indicates the lowest or first flue, which receives the heat directly from the burner through the opening I), and conducts it to the opposite sides of the oven. Next above the flue B is a flue O, and above the latter is a flue D, the two last-mentioned flues being for conducting to the sides of the oven heat generated by radiation. The said fines are preferably made in the form of an obtuse angle, inclining upward somewhat from the center to the sides of the oven, and narrowing to their extremities, the lowest flue B being the largest.

E indicates the side walls of the equalizer,

from the bottom is conducted to the sides by the fines O and D. The heat rising at the sides of the oven causes the upper cool air to descend, and such cool air, passing through apertures 0 into the flue O, becomes heated and is conducted by said flue to the sides of the oven. Thus a continuous circulation is produced in the oven as long as there is any inequality in the temperature therein, so as to approximately equalize the heat in all parts of the oven, the heat being thus utilized to the best advantage.

I claim 1. A heatequalizer for an oven, constructed of sheet metal and provided with a flue which is constructed to receive the heat from a burner and conduct it to the sides of the oven, and an adjoining upper flue provided with openings 0 and constructed to convey radiating heat to the sides of the oven, substantially as and for the purposes described.

2. In a heat-equalizer of an oven, a lower flue extending in opposite directions from the center, and an adjoining upper flue pro- Vided with air-openings c, said fiues beingin clined upward and being tapered to their extremities, substantially as set forth and described.

In testimony whereof I affix my signature in presence of two witnesses.

GEO. R. MOON. Witnesses:

F. HIAT'I, J OE T. DOAN.

The heat from 50 

